code: def engine(request):
      pytest.importorskip(request.param)
      return request.param
  
file_path: dask/dask/tests/test_spark_compat.py
imports: from __future__ import annotations
  import decimal
  import signal
  import sys
  import threading
  import pytest
  from dask.datasets import timeseries
  import numpy
  import pandas
  from dask.dataframe._compat import PANDAS_GE_150, PANDAS_GE_200
  from dask.dataframe.utils import assert_eq
label_desc: Use image node_id 1 for calling a global function with example usage: engine(request) and returns: request